Automotive lamp
    2.
    发明授权

    公开(公告)号:US11974380B2

    公开(公告)日:2024-04-30

    申请号:US17547756

    申请日:2021-12-10

    摘要: A scanning light source includes a semiconductor light source and a motor, and scans output light of the semiconductor light source in front of a lamp according to the movement of the motor. A constant current driver supplies a driving current ILED to the semiconductor light source according to a light source control signal. A light source control signal generator generates the light source control signal so as to obtain a light distribution pattern that corresponds to light distribution instruction data. A delay time measurement device measures the delay time required for the transition of the on/off states of the semiconductor light source from the change of the light source control signal.

    Interior component for vehicular lamp

    公开(公告)号:US11913617B2

    公开(公告)日:2024-02-27

    申请号:US18009908

    申请日:2021-04-06

    摘要: An internal part for a lighting tool for a vehicle, including: an entering portion for light; an emitting portion for light; and a light-guiding portion to guide the light from the entering portion to the emitting portion, the part being arranged at a distance of 5 mm or less from a light source, wherein the part is a molded body formed of a resin composition, wherein a 5-millimeter thick plate, obtained by subjecting the resin composition to injection molding at a cylinder temperature of 260° C., a die temperature of 80° C., a cycle time of 50 seconds, and a retention time of 230 seconds, a total light transmittance of 80% or more, and a ratio (X/Y) of a spectral light transmittance (X) of the 5-millimeter thick plate at a wavelength of 350 nm to a spectral light transmittance (Y) thereof at a wavelength of 400 nm is 0.75 or more.

    Vehicle headlight
    6.
    发明授权

    公开(公告)号:US10851959B2

    公开(公告)日:2020-12-01

    申请号:US16195445

    申请日:2018-11-19

    发明人: Takahiro Iwasaki

    摘要: A vehicle headlight includes lighting body cells that radiates light, each of the lighting body cells includes a light source and a lens body that projects the light emitted from the light source toward a side in front, final emission surfaces of the lens bodies that constitute the plurality of lighting body cells constitute continuous emission surfaces that are continuous with each other, and the light source is disposed further outward in the vehicle width direction than an optical axis of the lens bodies along an advancing direction of a vehicle while passing through a focus of the lens body of the first lighting body cell and the light source is disposed further outward in the vehicle width direction than an optical axis of the lens bodies along an advancing direction of a vehicle while passing through a focus of the lens body of the first lighting body cell.

    Optical element and light assembly

    公开(公告)号:US10760769B2

    公开(公告)日:2020-09-01

    申请号:US16203506

    申请日:2018-11-28

    发明人: Wen-Hsiang Lai

    摘要: An optical element includes a light entry surface configured to receive light, a light emission surface having a first light emission sub-surface and a second light emission sub-surface connected to each other, and a reflecting surface having a first reflecting sub-surface and a second reflecting sub-surface connected between the first reflecting sub-surface and the second light emission sub-surface. A first portion of the light is transmitted to the light entry surface and the first light emission sub-surface in sequence. A second portion of the light is transmitted to the light entry surface, the second reflecting sub-surface, and the second light exit sub-surface in sequence. A third portion of the light is transmitted to the light entry surface, the first reflecting sub-surface, the second reflecting sub-surface, and the second light emission sub-surface in sequence.

    Illumination device
    9.
    发明授权

    公开(公告)号:US10754168B2

    公开(公告)日:2020-08-25

    申请号:US16398561

    申请日:2019-04-30

    摘要: An illumination device has a coherent light source, an optical device that diffuses the plurality of coherent light beams and illuminates a predetermined illumination area, and a timing control unit that individually controls incident timing of the plurality of coherent light beams to the optical device or illumination timing of the illumination area, wherein the optical device has a plurality of diffusion regions, the diffusion regions being provided corresponding to the plurality of coherent light beams, the plurality of diffusion regions illuminate the illumination range by diffusion of incident coherent light beams, the plurality of diffusion regions have a plurality of element diffusion regions, the plurality of element diffusion regions illuminate partial regions in the illumination area by diffusion of incident coherent light beams, and at least parts of the partial regions illuminated by the plurality of element diffusion regions are different from one another.

    Light emitting device with a light transmissive member and method of manufacturing same

    公开(公告)号:US10753576B2

    公开(公告)日:2020-08-25

    申请号:US16195082

    申请日:2018-11-19

    摘要: A light emitting device includes a light emitting element, a light-transmissive member, a covering member, and a base member. The light-transmissive member has a flange on a lateral surface thereof in such a manner as to continue from a periphery of an upper surface to a periphery of a lower surface of the light-transmissive member and to be positioned outside the upper surface of the light-transmissive member and an upper surface of the light emitting element in plan view. The flange has a thin portion at an inner side than the outer edge side of the flange. The thin portion has a thickness smaller than a thickness of the outer edge side of the flange.